Oil-tank.



J. G. ORTH & W. WESTON.

" OIL TANK.

APPLIOATION FILED JULY 26, 1910.

994,333. Patented June 6,1911.

WITNESSES .NVE TORS (2%.... 438W 1/ es 021 9,,

Z All 0W A further objectof invention is to provide an 25, "its cost. of

Other'objects and I [drawn from the A further ob'ect o f ITE'D STATES PATENT OFFICE- JOHN G. ORTH AND WILLIAM WESTON, OF LOS ANGELES, CALIFORNIA.

OIL-TANK.

To all whom it may concern. Be 1t I States, residing at Los Angeles, the county useful Imp-rovements in Oil-Tanks, of which'the following is a specification.

Our invention relates/to apparatus forv storing and withdrawing hydrocarbons or analogous volatile fluids.-

An important object of this invention is to provide apparatus of the abovecharacter, wherein the hydrocarbon or oil may 'be stored at a constant pressure'and with-the exclusion of air.

apparatus for storing oil, or the like, together with a heavier liquid, said apparatus being provided with valves for preventing the heavier liquid from'being, Withapparatus with the oil.

our invention is to improve the construct1on in'gener'alof such apparatus, and simplify the'same'," whereby manufacturing is reduced.

advanta es "of this invention will be apparent herelnafter'.

preferred embodiment of tending annular flanges 2 and 3, respectively, upon 4o I shown at 6. "Theh'ead 4 I nally screw threaded n1 viip-fdisposed one end o 455 i shown) In the drawing forming a I section through "numeral 1- designates a f or'ming the body portion 3 his cylindrical casing with vertically receives the reduced I a cylindrical valve casing 15, as shown at 16.

partof this specification, the figure is a central vertical the apparatus.

e drawing wherein is illustrated :1. our invention, thecylindrical casing of a storage tank. has its npper and which are seated heads 4 and 5.

heads are bolted :to the flanges 2 and i is "provided center with avertically disposed and 3, as at its interple' 7,-within which a draw-ofi" pipe; 8, aving a "cut-ofi' valve '9 and a check valve; 10;]101 controllingthe same. I

he ead -5 isiprovided centrally-thereof disposed and internally screw" threaded nipple 14, one end of-which screwthreaded endof Specification' of Letters Patent. Application filed July 26, 1910. Serial No. 573,976. I

' screw threaded shown at 32.

Patented June 6,1911.

V This valve casing is vertically disposed and has its upper end internally screw threaded, as shown at 17, for the reception of the lower screw threaded end of a perforated vertically disposed pipe 18, which has its upper screw threaded end disposed within the lower portion upper s id-of the perforated pipe 18 is in he upper portion of the with-a valve seat 19, by a fioatwalve 20,

vi'ous that when the float-valve 20 the valve seat 19, communication is between the storage tank and the pipe 8. The valve casing 15 is provided with a valve seat 21 to 'engaged by a valve-head 22 having rigid connection with a reciprocatory stem 23, which is connected with a float 24. The valves'tem 23 is disposed axially within "the valve 'casin '15 and is guided in its movement by a I racket 25. The valvecasng 15 is-prov1ded upon one side engages cut oif receives the This pipe horizontal said vertical portion I end ofa pipe 27. 27 isbent at itscenter tofform and [vertical portions draw-oil. pipe 28 has its'screw threaded end .and th ed with-Ia 'cut-ofl valve 30. y pipe 31 has communication valve 30 and the head 5, as I This water supply pipe is provided with cut-oil and check valves 33 and 34 respectively. The pipe 31 is preferably extended vertically for communica- 1s' pipe is pronigple 14, as'shown, vi A water suptween the 'tion' with asuitably elevated water tank,

'- amounts of oil and water in (not shown). I

'For' the purpose: of a scertaining the the storage tank,

a substantially U- haped pipe 35 is provided,

" he upper horizontalportion of which is connected with a. nipple 36 formed upon the head 4, as shown at 37. This horizontal por- .tion-of horizontal portion of the pipe 35, is propipe is provided with a with pipe 28 is normally closed and the sage of the water through vided at a point is provided with a vertically disposed pres-,

sure relief pipe 41, as shown at T2. It is to be understood that the three-way valve may be operated to alternately establish communication between the pressure relief pipe 41 and the tank and the vertical portion of the pipe 35 and said tank. The vertical portion of the pipe 35 is provided with a plurality of glass tubes 43, which are arranged and connected with said vertical portion, as shown. Ihese glass tubes indicate the amounts of oil and water within the storage tank.

In the use of our apparatus, the valve 33 three-way valve 40" operated to establish communication between the storage tank and the pressure relief pipe are closed, the valves 13 and 33 are opened and the water is fed into the lower portion of the valve casing 15 and unseats the valvehead 22. As the water rises in the storage tank, the float 24: retains said valve-head unseated and thus permits of the free pasthe same to be discharged from the pipe 27. The air in the storage tank is forced out of the same by the water and discharged through the pipe 11. The valve 33 remains open until the storage tank has been completely filled with the water and the float-valve 20 elevated to engage its seat 19. The operator then connects the oil supply pipe 11 with the receptacle (not shown) containing the oil, and opens the valve 30, whereby the water is discharged impossible for any of the through the pipe 28 and oil is drawn through pipe 11 into the storage tank, to fill the space vacated by said water, it being understood that the float-valve 2O follows the level of the water. As the water is being discharged from the storage tank, the floatvalve'20 travels downwardly within the perforated pipe 18 and finally engages float 24 and forces valve-head 22 upon its seat, whereby the discharge of the water from the tank is stopped. It is thus seen that it is oil introduced into the storage tank to be discharged through the pipe 28. The storage tank having thus been completely filled with oil and water, valves 13 and 30 are closed and valve 33 is again opened. If it is desired to withdraw the oil from the storage tank through the pipe 8, valve 9-is opened and the water will rise in said storage tank and force the oil through said pipe 8. It is obvious that the float-valve 20 will prevent any of the water from being discharged through said pipe 8 together with the oil. The check valve 10 prevents the return of the oil into the storage tank through the pipe 8, and also pre vents air from entering the storage tank. The valve 9 may now be closed and the oil 41. Assuming that all other valves.

equi-distant of its ends with and water will be stored at a constant pressure. Should these liquids expand owing to their increase in temperature, the water will be free to flow into-the pressure relief pipe 41, whereby the pressure within the storage tank is kept constant. By the employment of check valve 34, the water is prevented from'flowing back beyond the same. By proper operation of valves 38 and 40, communication may be established between the storage tank and thevertiea'l portion of the U-shaped pipe 35, whereby the amounts of oil and water in said storage tank may be ascertained.

We wish it understood that the form'of our invention herewith shown and described is to be taken as a preferred example of the same, and that certain changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of our invention orthe scope of the subjoined claims.

Having thus fully described our invention what we claim as new anddesire to secure by Letters Patent, is i 1. In apparatus of the character described, a closed tank, a valve-casing disposed within the lower portion of said tank, a perforated pipe disposed within said tank and extending longitudinally thereof, said pipe having one end thereof connected with said valve-casingand the other. end connected with the upper portion ofsaid tank, a valve movably mounted within said valve-easing, a float connected with said valve, and a float-valve movably mounted within said perforated pipe to control the discharge of the same and to effect the movement of the first named valve.

2. In apparatus of the character described, a closed tank having its-upper and lower ends provided with nipples, a valve-easing disposed within the lower portion of said tank and connected with one of the nipples, a valve to operate within. said valve casing, a perforated pipe disposed longitudinally of said tank and having its ends connected with one of the nipples and valve-casing, a float-valve movably mounted within said perforated pipe to control the discharge from the upper end of the pipe and to elfect the movement of the first named valve, supply means and discharge means disposed near the upper end of said tank and connected with the nipple, and discharge means and supply means portion of said tank and with the other nipple.

3. In apparatus of the character described, a closed tank having its ends providedwith upper and lower screw threaded nipples, a valve-casing disposed within the lower portion of said tank and having connection with the lower nipple, a perforated pipe having connection disposed near the lower tion with the upper nipple and valve-casing, wardly within said perforated pi to actua valve movably mounted within said valveate the first named valve, and a su antially casing and positioned near the lower end of vertically disposed pressure relief pi e havsaid perforated pipe, and a float-valve moving "unobstructed communication with the 5 ably mounted w1thin said perforated pipe to lower end of said tank.

control the discharge from the upper end of 5. In apparatus of the character described, the same and to engage said valve upon its a closed tank, a valve-casing disposed within downward movement to effect the movement said tank, a pipe extending longitudinally of the first named valve. within the tank above said valve casing and 4. In apparatus'of the character described, having one end thereof arran ed adjacent a closed tank, common supply and dischar e the valve-casing, a valve movai means connected with the upper end of sa1d within the valve-casing to control the pastank, a perforated p'pe extending longitudisage of fluids through the same, and a floatnally of said tank and having its upper end valve movably mounted within said pipe to connected with said means, common supply control the discharge of fluids from one end and dischar e means connected with the of said pipe and to move downwardly withlower end 0 said tank, a valve-casing disin said p1 e to effect the movement of the I posed between the second named means and first named valve.

ly 'mounted said perforated pipe and being connected In testimony whereof we aflix our sig'na with the same, a valve movably mounted tures in presence of two witnesses.

within said valve casing, a float valve mov- JOHN G. ORTH. ably mounted within said perforated i e, WILLIAM WESTON. said float valve being adapted to contro t e Witnesses: discharge of material from the upper end of B. H. J oHNsoN,

said perforated pipe and to move down- F. MoD. SPENCER. 

